Active NPI
John W. Kirk, PSY.D.
- Specialist
- Boulder, CO
National Provider Identifier
1851330435
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Specialist
- License
- 2834
- Practice address
- 2501 Walnut St
Suite 107
Boulder, CO 80302-5751 - Phone
- (303) 915-0108
- Fax
- (303) 443-4682
- NPI assigned
- Jun 6, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Specialist | 174400000X | 2834 | CO | Primary |
Addresses
Primary practice location
2501 Walnut St
Suite 107
Boulder, CO 80302-5751
Mailing address
PO Box 2086
Fort Collins, CO 80522-2086
Phone (303) 444-3443
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2834 | CO | MD | Specialist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149552000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1851330435",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2086",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805222086",
"telephone_number": "303-444-3443",
"fax_number": "970-221-3730"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2501 WALNUT ST",
"address_2": "SUITE 107",
"city": "BOULDER",
"state": "CO",
"postal_code": "803025751",
"telephone_number": "303-915-0108",
"fax_number": "303-443-4682"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KIRK",
"first_name": "JOHN",
"middle_name": "W.",
"credential": "PSY.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-06",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "174400000X",
"taxonomy_group": "",
"desc": "Specialist",
"state": "CO",
"license": "2834",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Boulder, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.